Actuator arrangement and a method of operating an actuator

Details Actuator arrangement and a method of operating an actuator Actuator arrangement and a method of operating an actuator

2006-12-21

2011-10-04

Benson, Walter (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

C318S552000, C251S129040, C251S129110, C417S129000, C477S030000, C477S048000, C477S089000, C477S146000, C477S155000

Reexamination Certificate

active

08030875

ABSTRACT:
Interruption in supervisory position control signals can cause problems with respect to actuators which upon loss of such control signals for the actuator will generally slew to a fixed idle position. In such circumstances a machine such as a gas turbine engine in which an actuator is associated will not sustain performance even though there is continued local power supply to the actuator. By utilizing a local controller which stores actuator response profiles for certain machine status stages through perturbation or marginal activation of the actuator an appropriate actuator response profile can be chosen and therefore sustaining control signals presented to the actuator to maintain machine operation.

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